body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    color: #333;
}

h1 {
    color: #0671dc;
    /* 让文字左右滚动，并且改变颜色*/
    text-shadow: 0 0 5px #333;
    animation: scroll-text 5s linear infinite;
    animation-fill-mode: forwards;
    animation-delay: 2s;
    animation-direction: alternate;
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
    animation-play-state: running;
    animation-name: scroll-text;
    animation-duration: 5s;
}
